Portable electronic device displaying graphic user interface



The sole FIGURE is a front-side view of a portable electronic device displaying graphical user interface showing my new design.

The broken line showing of the mobile terminal, and the on-screen symbols, is included for the purpose of illustrating environmental structure and portions of the article, respectively, and forms no part of the claimed design. 

CLAIM I claim the ornamental design for a portable electronic device displaying graphical user interface, as shown and described. 